Centroid - Orthocenter
The distance from the circumcenter to the vertex is twice the distance from it to the opposite line.
The distance to the vertices is always equidistant.
It is the center of an inscribed triangle.
The adjacent interior angle doubled.
The adjacent interior angle plus both of the remote angles.
The sum of the 2 remote angles.
None of the above
The end point of the euler line
The middle point of the euler line